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/*
* Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.ui;
import java.util.ArrayList;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.Id;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.helper.ExportHelper;
import org.sufficientlysecure.keychain.provider.KeychainContract;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.ui.adapter.KeyListPublicAdapter;
import org.sufficientlysecure.keychain.ui.dialog.DeleteKeyDialogFragment;
import se.emilsjolander.stickylistheaders.ApiLevelTooLowException;
import se.emilsjolander.stickylistheaders.StickyListHeadersListView;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.Messenger;
import android.support.v4.app.Fragment;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.support.v4.view.MenuItemCompat;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.SearchView;
import android.text.TextUtils;
import android.view.ActionMode;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.animation.AnimationUtils;
import android.widget.AbsListView.MultiChoiceModeListener;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;
import com.beardedhen.androidbootstrap.BootstrapButton;
/**
* Public key list with sticky list headers. It does _not_ extend ListFragment because it uses
* StickyListHeaders library which does not extend upon ListView.
*/
public class KeyListPublicFragment extends Fragment implements SearchView.OnQueryTextListener, AdapterView.OnItemClickListener,
LoaderManager.LoaderCallbacks<Cursor> {
private KeyListPublicAdapter mAdapter;
private StickyListHeadersListView mStickyList;
// rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
boolean mListShown;
View mProgressContainer;
View mListContainer;
private String mCurQuery;
private SearchView mSearchView;
// empty list layout
private BootstrapButton mButtonEmptyCreate;
private BootstrapButton mButtonEmptyImport;
/**
* Load custom layout with StickyListView from library
*/
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View root = inflater.inflate(R.layout.key_list_public_fragment, container, false);
mStickyList = (StickyListHeadersListView) root.findViewById(R.id.key_list_public_list);
mStickyList.setOnItemClickListener(this);
// empty view
mButtonEmptyCreate = (BootstrapButton) root.findViewById(R.id.key_list_empty_button_create);
mButtonEmptyCreate.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getActivity(), EditKeyActivity.class);
intent.setAction(EditKeyActivity.ACTION_CREATE_KEY);
intent.putExtra(EditKeyActivity.EXTRA_GENERATE_DEFAULT_KEYS, true);
intent.putExtra(EditKeyActivity.EXTRA_USER_IDS, ""); // show user id view
startActivityForResult(intent, 0);
}
});
mButtonEmptyImport = (BootstrapButton) root.findViewById(R.id.key_list_empty_button_import);
mButtonEmptyImport.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getActivity(), ImportKeysActivity.class);
intent.setAction(ImportKeysActivity.ACTION_IMPORT_KEY_FROM_FILE);
startActivityForResult(intent, 0);
}
});
// rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
mListContainer = root.findViewById(R.id.key_list_public_list_container);
mProgressContainer = root.findViewById(R.id.key_list_public_progress_container);
mListShown = true;
return root;
}
/**
* Define Adapter and Loader on create of Activity
*/
@SuppressLint("NewApi")
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mStickyList.setAreHeadersSticky(true);
mStickyList.setDrawingListUnderStickyHeader(false);
mStickyList.setFastScrollEnabled(true);
try {
mStickyList.setFastScrollAlwaysVisible(true);
} catch (ApiLevelTooLowException e) {
}
// this view is made visible if no data is available
mStickyList.setEmptyView(getActivity().findViewById(R.id.key_list_public_empty));
/*
* ActionBarSherlock does not support MultiChoiceModeListener. Thus multi-selection is only
* available for Android >= 3.0
*/
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
mStickyList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
mStickyList.getWrappedList().setMultiChoiceModeListener(new MultiChoiceModeListener() {
@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
android.view.MenuInflater inflater = getActivity().getMenuInflater();
inflater.inflate(R.menu.key_list_public_multi, menu);
return true;
}
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
return false;
}
@Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
// get row ids for checked positions as long array
long[] ids = mStickyList.getCheckedItemIds();
switch (item.getItemId()) {
case R.id.menu_key_list_public_multi_encrypt: {
encrypt(mode, ids);
break;
}
case R.id.menu_key_list_public_multi_export: {
ExportHelper mExportHelper = new ExportHelper((ActionBarActivity) getActivity());
mExportHelper.showExportKeysDialog(ids, Id.type.public_key, Constants.path.APP_DIR_FILE_PUB);
break;
}
case R.id.menu_key_list_public_multi_delete: {
showDeleteKeyDialog(mode, ids);
break;
}
case R.id.menu_key_list_public_multi_select_all: {
//Select all
for (int i = 0; i < mStickyList.getCount(); i++) {
mStickyList.setItemChecked(i, true);
}
break;
}
}
return true;
}
@Override
public void onDestroyActionMode(ActionMode mode) {
mAdapter.clearSelection();
}
@Override
public void onItemCheckedStateChanged(ActionMode mode, int position, long id,
boolean checked) {
if (checked) {
mAdapter.setNewSelection(position, checked);
} else {
mAdapter.removeSelection(position);
}
int count = mStickyList.getCheckedItemCount();
String keysSelected = getResources().getQuantityString(
R.plurals.key_list_selected_keys, count, count);
mode.setTitle(keysSelected);
}
});
}
// We have a menu item to show in action bar.
setHasOptionsMenu(true);
// NOTE: Not supported by StickyListHeader, but reimplemented here
// Start out with a progress indicator.
setListShown(false);
// Create an empty adapter we will use to display the loaded data.
mAdapter = new KeyListPublicAdapter(getActivity(), null, Id.type.public_key, USER_ID_INDEX);
mStickyList.setAdapter(mAdapter);
// Prepare the loader. Either re-connect with an existing one,
// or start a new one.
getLoaderManager().initLoader(0, null, this);
}
// These are the rows that we will retrieve.
static final String[] PROJECTION = new String[]{
KeychainContract.KeyRings._ID,
KeychainContract.KeyRings.MASTER_KEY_ID,
KeychainContract.UserIds.USER_ID,
KeychainContract.Keys.IS_REVOKED
};
static final int USER_ID_INDEX = 2;
static final String SORT_ORDER = UserIds.USER_ID + " ASC";
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
// This is called when a new Loader needs to be created. This
// sample only has one Loader, so we don't care about the ID.
Uri baseUri = KeyRings.buildPublicKeyRingsUri();
String where = null;
String whereArgs[] = null;
if (mCurQuery != null) {
where = KeychainContract.UserIds.USER_ID + " LIKE ?";
whereArgs = new String[]{"%" + mCurQuery + "%"};
}
// Now create and return a CursorLoader that will take care of
// creating a Cursor for the data being displayed.
return new CursorLoader(getActivity(), baseUri, PROJECTION, where, whereArgs, SORT_ORDER);
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
// Swap the new cursor in. (The framework will take care of closing the
// old cursor once we return.)
mAdapter.setSearchQuery(mCurQuery);
mAdapter.swapCursor(data);
mStickyList.setAdapter(mAdapter);
// NOTE: Not supported by StickyListHeader, but reimplemented here
// The list should now be shown.
if (isResumed()) {
setListShown(true);
} else {
setListShownNoAnimation(true);
}
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
// This is called when the last Cursor provided to onLoadFinished()
// above is about to be closed. We need to make sure we are no
// longer using it.
mAdapter.swapCursor(null);
}
/**
* On click on item, start key view activity
*/
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
Intent viewIntent = null;
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
viewIntent = new Intent(getActivity(), ViewKeyActivity.class);
} else {
viewIntent = new Intent(getActivity(), ViewKeyActivityJB.class);
}
viewIntent.setData(KeychainContract.KeyRings.buildPublicKeyRingsUri(Long.toString(id)));
startActivity(viewIntent);
}
@TargetApi(11)
public void encrypt(ActionMode mode, long[] keyRingRowIds) {
// get master key ids from row ids
long[] keyRingIds = new long[keyRingRowIds.length];
for (int i = 0; i < keyRingRowIds.length; i++) {
keyRingIds[i] = ProviderHelper.getPublicMasterKeyId(getActivity(), keyRingRowIds[i]);
}
Intent intent = new Intent(getActivity(), EncryptActivity.class);
intent.setAction(EncryptActivity.ACTION_ENCRYPT);
intent.putExtra(EncryptActivity.EXTRA_ENCRYPTION_KEY_IDS, keyRingIds);
// used instead of startActivity set actionbar based on callingPackage
startActivityForResult(intent, 0);
mode.finish();
}
/**
* Show dialog to delete key
*
* @param keyRingRowIds
*/
@TargetApi(11)
public void showDeleteKeyDialog(final ActionMode mode, long[] keyRingRowIds) {
// Message is received after key is deleted
Handler returnHandler = new Handler() {
@Override
public void handleMessage(Message message) {
if (message.what == DeleteKeyDialogFragment.MESSAGE_OKAY) {
Bundle returnData = message.getData();
if (returnData != null
&& returnData.containsKey(DeleteKeyDialogFragment.MESSAGE_NOT_DELETED)) {
ArrayList<String> notDeleted =
returnData.getStringArrayList(DeleteKeyDialogFragment.MESSAGE_NOT_DELETED);
String notDeletedMsg = "";
for (String userId : notDeleted) {
notDeletedMsg += userId + "\n";
}
Toast.makeText(getActivity(), getString(R.string.error_can_not_delete_contacts, notDeletedMsg)
+ getResources().getQuantityString(R.plurals.error_can_not_delete_info, notDeleted.size()),
Toast.LENGTH_LONG).show();
mode.finish();
}
}
}
};
// Create a new Messenger for the communication back
Messenger messenger = new Messenger(returnHandler);
DeleteKeyDialogFragment deleteKeyDialog = DeleteKeyDialogFragment.newInstance(messenger,
keyRingRowIds, Id.type.public_key);
deleteKeyDialog.show(getActivity().getSupportFragmentManager(), "deleteKeyDialog");
}
@Override
public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) {
// Get the searchview
MenuItem searchItem = menu.findItem(R.id.menu_key_list_public_search);
mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem);
// Execute this when searching
mSearchView.setOnQueryTextListener(this);
// Erase search result without focus
MenuItemCompat.setOnActionExpandListener(searchItem, new MenuItemCompat.OnActionExpandListener() {
@Override
public boolean onMenuItemActionExpand(MenuItem item) {
return true;
}
@Override
public boolean onMenuItemActionCollapse(MenuItem item) {
mCurQuery = null;
mSearchView.setQuery("", true);
getLoaderManager().restartLoader(0, null, KeyListPublicFragment.this);
return true;
}
});
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public boolean onQueryTextSubmit(String s) {
return true;
}
@Override
public boolean onQueryTextChange(String s) {
// Called when the action bar search text has changed. Update
// the search filter, and restart the loader to do a new query
// with this filter.
mCurQuery = !TextUtils.isEmpty(s) ? s : null;
getLoaderManager().restartLoader(0, null, this);
return true;
}
// rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
public void setListShown(boolean shown, boolean animate) {
if (mListShown == shown) {
return;
}
mListShown = shown;
if (shown) {
if (animate) {
mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
getActivity(), android.R.anim.fade_out));
mListContainer.startAnimation(AnimationUtils.loadAnimation(
getActivity(), android.R.anim.fade_in));
}
mProgressContainer.setVisibility(View.GONE);
mListContainer.setVisibility(View.VISIBLE);
} else {
if (animate) {
mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
getActivity(), android.R.anim.fade_in));
mListContainer.startAnimation(AnimationUtils.loadAnimation(
getActivity(), android.R.anim.fade_out));
}
mProgressContainer.setVisibility(View.VISIBLE);
mListContainer.setVisibility(View.INVISIBLE);
}
}
// rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
public void setListShown(boolean shown) {
setListShown(shown, true);
}
// rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
public void setListShownNoAnimation(boolean shown) {
setListShown(shown, false);
}
}
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